Xiangwu Ding

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Interleukin 18 (IL-18) is a pro-atherogenic cytokine associated with the occurrence of various cardiac complications. The IL-18 gene has a functional -137 G/C polymorphism (rs187238) in the promoter region. Using the ligase detection reaction-polymerase chain reaction, we genotyped a cohort of patients in Chinese Han population in Xiangfan region. Case(More)
This study aims to investigate the relationship between the levels of IL-18, IL-10, and MMP-9 and -137G/C polymorphism of interleukin 18 with the risk of in-stent restenosis (ISR). The study population consisted of 68 patients with ISR, 173 in non-ISR group, treated with drug-eluting stent and evaluated by coronary angiography post-procedure and at(More)
Single Sign-On (SSO) means that a user logs in once and gains access to all systems without being prompted to log in again at each of them. As a solution to SSO, OpenID can simplify users’ operation process and reduce the resource provider’s overhead. Its application is becoming popular. However, there are still some security problems in(More)
Tuple reconstruction is an important component in column-stores. Some well-known column-stores, such as C-Store, employ projection to support tuple reconstruction. This paper proposes an adaptive projection strategy and an implementation method for projection. The proposed strategy employs association analysis to a considerable amount of query accesses(More)
Storage structures of data are critically important for performance and scalability. In read-mostly analytic applications, column-store exhibits significant advantage over row store. In column-store, one of the most cost-time operations is on-the-fly tuple reconstruction for multi-attribute queries. In this paper we propose a column-based self-organizing(More)
We proposed a scheme of data compression and query technology to improve the performance of processing structured data on Hadoop platform. Firstly, we designed a data page structure for row-column hybrid storage based on HDFS. Then we proposed and implemented an adaptive lightweight data compression strategy based on MapReduce to compress and store data as(More)
As a solution to Single Sign-On (SSO), OpenID can simplify users’ operation process and reduce resource provider’s overhead. Its application in the websites is becoming popular and the multi-level security of OpenID has also become a topic of concern. First the basic OpenID infrastructure is introduced, including its components, hierarchy(More)
Transforming the non-structured medical text data into structured data is the basis of the processing and analysis of medical data. The effect of general-purpose word segmentation tools recognizing terminology is not ideal, which greatly affects the accuracy of the word segmentation, and further influences the result of text structuralization. In view of(More)